Question

Решите двойное неравенство:
1) 3<(х+4)<5;
2) -1<х-2/3<5;

Answer 1

1)3<(x+4)<5

-1<x<1

2)-1<x-2/3<5

-1/3<x<17/5

-1/3<x<5(2/3)